{"id":1935,"date":"2025-03-24T08:49:35","date_gmt":"2025-03-23T23:49:35","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=1935"},"modified":"2025-03-24T08:49:35","modified_gmt":"2025-03-23T23:49:35","slug":"c-deque%e3%82%92%e5%ae%8c%e5%85%a8%e3%83%9e%e3%82%b9%e3%82%bf%e3%83%bc%ef%bc%81vector%e3%82%88%e3%82%8a%e9%ab%98%e9%80%9f%e3%81%aa7%e3%81%a4%e3%81%ae%e6%b4%bb%e7%94%a8%e3%82%b7%e3%83%bc%e3%83%b3","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=1935","title":{"rendered":"C++ deque\u3092\u5b8c\u5168\u30de\u30b9\u30bf\u30fc\uff01vector\u3088\u308a\u9ad8\u901f\u306a7\u3064\u306e\u6d3b\u7528\u30b7\u30fc\u30f3"},"content":{"rendered":"\n<div class=\"toc\"><br \/>\n<b>Warning<\/b>:  Undefined array key \"is_admin\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>116<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_category_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>121<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>128<\/b><br \/>\n    <div id=\"toc_container\" class=\"sgb-toc--bullets js-smooth-scroll\" data-dialog-title=\"\u76ee\u6b21\">\n      <p class=\"toc_title\">\u76ee\u6b21 <\/p>\n      <ul class=\"toc_list\">  <li class=\"first\">    <a href=\"#i-0\">deque\u3068\u306f\uff1f\u521d\u5fc3\u8005\u3067\u3082\u308f\u304b\u308b\u57fa\u790e\u77e5\u8b58<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">\u53cc\u65b9\u5411\u30ad\u30e5\u30fc\u306e\u7279\u5fb4\u3068\u57fa\u672c\u64cd\u4f5c\u3092\u89e3\u8aac<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-4\">\u30e1\u30e2\u30ea\u7ba1\u7406\u306e\u4ed5\u7d44\u307f\u3092\u56f3\u89e3\u3067\u7406\u89e3\u3057\u3088\u3046<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-5\">vector\u3068deque\u306e\u6c7a\u5b9a\u7684\u306a\u9055\u3044<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-6\">\u30e1\u30e2\u30ea\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u9055\u3044\u304c\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5de6\u53f3\u3059\u308b<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-9\">\u64cd\u4f5c\u5225\u306e\u5b9f\u884c\u901f\u5ea6\u3092\u6bd4\u8f03\u691c\u8a3c<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-11\">deque\u304c\u6700\u5f37\u306e7\u3064\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-12\">\u4e21\u7aef\u306e\u30d7\u30c3\u30b7\u30e5\/\u30dd\u30c3\u30d7\u304c\u983b\u7e41\u306a\u5834\u5408<\/a>      <\/li>      <li>        <a href=\"#i-13\">\u30e1\u30e2\u30ea\u52b9\u7387\u3092\u91cd\u8996\u3059\u308b\u5927\u898f\u6a21\u30c7\u30fc\u30bf\u51e6\u7406<\/a>      <\/li>      <li>        <a href=\"#i-14\">\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u30c7\u30fc\u30bf\u306e\u51e6\u7406\u30ad\u30e5\u30fc<\/a>      <\/li>      <li>        <a href=\"#i-15\">\u30b9\u30e9\u30a4\u30c7\u30a3\u30f3\u30b0\u30a6\u30a3\u30f3\u30c9\u30a6\u306e\u5b9f\u88c5<\/a>      <\/li>      <li>        <a href=\"#i-16\">\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u74b0\u5883\u3067\u306e\u30d0\u30c3\u30d5\u30a1<\/a>      <\/li>      <li>        <a href=\"#i-17\">\u30e1\u30e2\u30ea\u30d5\u30e9\u30b0\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u56de\u907f<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-18\">\u52d5\u7684\u306a\u30e1\u30e2\u30ea\u5272\u308a\u5f53\u3066\u304c\u5fc5\u8981\u306a\u5834\u5408<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-19\">deque\u306e\u5b9f\u8df5\u7684\u306a\u4f7f\u3044\u65b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-20\">\u57fa\u672c\u7684\u306a\u64cd\u4f5c\u65b9\u6cd5\u3092\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u89e3\u8aac<\/a>      <\/li>      <li>        <a href=\"#i-21\">\u30a4\u30c6\u30ec\u30fc\u30bf\u306e\u6b63\u3057\u3044\u4f7f\u3044\u65b9\u3068\u6ce8\u610f\u70b9<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-22\">\u30e1\u30e2\u30ea\u7ba1\u7406\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-23\">deque\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6700\u5927\u9650\u5f15\u304d\u51fa\u3059\u30b3\u30c4<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-24\">\u30e1\u30e2\u30ea\u30a2\u30ed\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u6700\u9069\u5316\u3059\u308b\u30c6\u30af\u30cb\u30c3\u30af<\/a>      <\/li>      <li>        <a href=\"#i-25\">\u30ad\u30e3\u30c3\u30b7\u30e5\u30d5\u30ec\u30f3\u30c9\u30ea\u30fc\u306a\u5b9f\u88c5\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-26\">\u3088\u304f\u3042\u308b\u843d\u3068\u3057\u7a74\u3068\u5bfe\u51e6\u6cd5<\/a>      <\/li>    <\/ul>  <\/li><\/ul>\n      <a href=\"#\" class=\"sgb-toc-button js-toc-button\" rel=\"nofollow\" data-open-dialog=\"true\"><i class=\"fa fa-list\"><\/i><span class=\"sgb-toc-button__text\">\u76ee\u6b21\u3078<\/span><\/a>\n    <\/div><\/div><h2 class=\"wp-block-heading\" id=\"i-0\">deque\u3068\u306f\uff1f\u521d\u5fc3\u8005\u3067\u3082\u308f\u304b\u308b\u57fa\u790e\u77e5\u8b58<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">\u53cc\u65b9\u5411\u30ad\u30e5\u30fc\u306e\u7279\u5fb4\u3068\u57fa\u672c\u64cd\u4f5c\u3092\u89e3\u8aac<\/h3>\n\n\n\n<p>deque\uff08\u30c7\u30c3\u30af\uff09\u306f\u300cdouble-ended queue\uff08\u53cc\u65b9\u5411\u30ad\u30e5\u30fc\uff09\u300d\u306e\u7565\u79f0\u3067\u3001C++\u306e\u6a19\u6e96\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e9\u30a4\u30d6\u30e9\u30ea\uff08STL\uff09\u306b\u542b\u307e\u308c\u308b\u91cd\u8981\u306a\u30b3\u30f3\u30c6\u30ca\u306e1\u3064\u3067\u3059\u3002\u914d\u5217\u306e\u3088\u3046\u306a\u9023\u7d9a\u3057\u305f\u30e1\u30e2\u30ea\u7a7a\u9593\u3067\u306f\u306a\u304f\u3001\u8907\u6570\u306e\u30c1\u30e3\u30f3\u30af\uff08\u30d6\u30ed\u30c3\u30af\uff09\u306b\u5206\u304b\u308c\u305f\u7279\u6b8a\u306a\u30e1\u30e2\u30ea\u69cb\u9020\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-2\">deque\u306e\u4e3b\u306a\u7279\u5fb4<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4e21\u7aef\u3067\u306e\u9ad8\u901f\u306a\u64cd\u4f5c<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5148\u982d\u3068\u672b\u5c3e\u3067\u306e\u8981\u7d20\u306e\u8ffd\u52a0\u30fb\u524a\u9664\u304c O(1) \u306e\u6642\u9593\u3067\u53ef\u80fd<\/li>\n\n\n\n<li><code>push_front()<\/code>\u3001<code>push_back()<\/code>\u3001<code>pop_front()<\/code>\u3001<code>pop_back()<\/code> \u3092\u30b5\u30dd\u30fc\u30c8<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30e9\u30f3\u30c0\u30e0\u30a2\u30af\u30bb\u30b9<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u914d\u5217\u306e\u3088\u3046\u306b\u6dfb\u5b57\u6f14\u7b97\u5b50 <code>[]<\/code> \u3092\u4f7f\u3063\u3066\u8981\u7d20\u306b\u76f4\u63a5\u30a2\u30af\u30bb\u30b9\u53ef\u80fd<\/li>\n\n\n\n<li>\u30a4\u30c6\u30ec\u30fc\u30bf\u306b\u3088\u308b\u53cc\u65b9\u5411\u8d70\u67fb\u3092\u30b5\u30dd\u30fc\u30c8<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u52d5\u7684\u306a\u30e1\u30e2\u30ea\u7ba1\u7406<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8981\u7d20\u6570\u304c\u5897\u6e1b\u3057\u3066\u3082\u81ea\u52d5\u7684\u306b\u30e1\u30e2\u30ea\u3092\u7ba1\u7406<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u306e\u518d\u914d\u7f6e\u304c\u6700\u5c0f\u9650\u3067\u6e08\u3080\u52b9\u7387\u7684\u306a\u8a2d\u8a08<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-3\">\u57fa\u672c\u7684\u306a\u64cd\u4f5c\u4f8b<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;deque&gt;\n#include &lt;iostream&gt;\n\nint main() {\n    \/\/ deque\u306e\u5ba3\u8a00\u3068\u521d\u671f\u5316\n    std::deque&lt;int&gt; numbers;  \/\/ \u7a7a\u306edeque\n\n    \/\/ \u8981\u7d20\u306e\u8ffd\u52a0\uff08\u4e21\u7aef\uff09\n    numbers.push_back(10);    \/\/ \u672b\u5c3e\u306b\u8ffd\u52a0: [10]\n    numbers.push_front(5);    \/\/ \u5148\u982d\u306b\u8ffd\u52a0: [5, 10]\n\n    \/\/ \u8981\u7d20\u3078\u306e\u30a2\u30af\u30bb\u30b9\n    std::cout &lt;&lt; \"\u5148\u982d\u8981\u7d20: \" &lt;&lt; numbers.front() &lt;&lt; std::endl;  \/\/ 5\n    std::cout &lt;&lt; \"\u672b\u5c3e\u8981\u7d20: \" &lt;&lt; numbers.back() &lt;&lt; std::endl;   \/\/ 10\n\n    \/\/ \u30b5\u30a4\u30ba\u306e\u78ba\u8a8d\n    std::cout &lt;&lt; \"\u30b5\u30a4\u30ba: \" &lt;&lt; numbers.size() &lt;&lt; std::endl;     \/\/ 2\n\n    \/\/ \u30a4\u30c6\u30ec\u30fc\u30bf\u3092\u4f7f\u7528\u3057\u305f\u8d70\u67fb\n    for(auto it = numbers.begin(); it != numbers.end(); ++it) {\n        std::cout &lt;&lt; *it &lt;&lt; \" \";  \/\/ 5 10\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-4\">\u30e1\u30e2\u30ea\u7ba1\u7406\u306e\u4ed5\u7d44\u307f\u3092\u56f3\u89e3\u3067\u7406\u89e3\u3057\u3088\u3046<\/h3>\n\n\n\n<p>deque\u306e\u5185\u90e8\u69cb\u9020\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u7279\u5fb4\u7684\u306a\u30e1\u30e2\u30ea\u7ba1\u7406\u3092\u884c\u3063\u3066\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c1\u30e3\u30f3\u30af\u65b9\u5f0f\u306e\u30e1\u30e2\u30ea\u7ba1\u7406<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u56fa\u5b9a\u30b5\u30a4\u30ba\u306e\u30c1\u30e3\u30f3\u30af\uff08\u30d6\u30ed\u30c3\u30af\uff09\u5358\u4f4d\u3067\u30e1\u30e2\u30ea\u3092\u78ba\u4fdd<\/li>\n\n\n\n<li>\u5404\u30c1\u30e3\u30f3\u30af\u306f\u9023\u7d9a\u3057\u305f\u30e1\u30e2\u30ea\u9818\u57df<\/li>\n\n\n\n<li>\u30c1\u30e3\u30f3\u30af\u540c\u58eb\u306f\u30dd\u30a4\u30f3\u30bf\u3067\u9023\u7d50<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30e1\u30e2\u30ea\u30de\u30c3\u30d7\u69cb\u9020<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e2d\u592e\u5236\u5fa1\u30d6\u30ed\u30c3\u30af\u304c\u5404\u30c1\u30e3\u30f3\u30af\u3078\u306e\u30dd\u30a4\u30f3\u30bf\u3092\u7ba1\u7406<\/li>\n\n\n\n<li>\u8981\u7d20\u306e\u8ffd\u52a0\u6642\u306f\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u65b0\u3057\u3044\u30c1\u30e3\u30f3\u30af\u3092\u78ba\u4fdd<\/li>\n\n\n\n<li>\u8981\u7d20\u306e\u524a\u9664\u6642\u306f\u4e0d\u8981\u306a\u30c1\u30e3\u30f3\u30af\u3092\u89e3\u653e<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306a\u69cb\u9020\u306b\u3088\u308a\u3001\u4ee5\u4e0b\u306e\u30e1\u30ea\u30c3\u30c8\u304c\u5f97\u3089\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30e1\u30e2\u30ea\u306e\u52b9\u7387\u7684\u306a\u5229\u7528<\/li>\n\n\n\n<li>\u4e21\u7aef\u3067\u306e\u9ad8\u901f\u306a\u64cd\u4f5c<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u518d\u914d\u7f6e\u306e\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u6700\u5c0f\u5316<\/li>\n\n\n\n<li>\u30d5\u30e9\u30b0\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u6291\u5236<\/li>\n<\/ul>\n\n\n\n<p>\u6ce8\u610f\u70b9\u3068\u3057\u3066\u3001\u30c1\u30e3\u30f3\u30af\u9593\u306e\u30dd\u30a4\u30f3\u30bf\u79fb\u52d5\u304c\u3042\u308b\u305f\u3081\u3001\u5358\u4e00\u306e\u9023\u7d9a\u30e1\u30e2\u30ea\u3092\u4f7f\u7528\u3059\u308bvector\u3068\u6bd4\u3079\u3066\u3001\u8981\u7d20\u3078\u306e\u30e9\u30f3\u30c0\u30e0\u30a2\u30af\u30bb\u30b9\u6642\u306b\u82e5\u5e72\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u4f4e\u4e0b\u304c\u751f\u3058\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-5\">vector\u3068deque\u306e\u6c7a\u5b9a\u7684\u306a\u9055\u3044<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-6\">\u30e1\u30e2\u30ea\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u9055\u3044\u304c\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5de6\u53f3\u3059\u308b<\/h3>\n\n\n\n<p>vector\u3068deque\u306f\u3001\u307e\u3063\u305f\u304f\u7570\u306a\u308b\u30e1\u30e2\u30ea\u7ba1\u7406\u6226\u7565\u3092\u63a1\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u9055\u3044\u304c\u3001\u5404\u7a2e\u64cd\u4f5c\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u5927\u304d\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-7\">\u30e1\u30e2\u30ea\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u7279\u5fb4\u6bd4\u8f03<\/h4>\n\n\n<div id=\"id-f037cecf-79cb-4259-b12f-6f6a366e1d33\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7279\u6027<\/th><th>vector<\/th><th>deque<\/th><\/tr><\/thead><tbody><tr><td>\u30e1\u30e2\u30ea\u914d\u7f6e<\/td><td>\u9023\u7d9a\u3057\u305f\u5358\u4e00\u30d6\u30ed\u30c3\u30af<\/td><td>\u8907\u6570\u306e\u56fa\u5b9a\u30b5\u30a4\u30ba\u30d6\u30ed\u30c3\u30af<\/td><\/tr><tr><td>\u62e1\u5f35\u65b9\u5f0f<\/td><td>\u5168\u4f53\u306e\u518d\u914d\u7f6e\u304c\u5fc5\u8981<\/td><td>\u65b0\u898f\u30d6\u30ed\u30c3\u30af\u306e\u8ffd\u52a0\u306e\u307f<\/td><\/tr><tr><td>\u30e1\u30e2\u30ea\u52b9\u7387<\/td><td>\u5927\u304d\u306a\u9023\u7d9a\u9818\u57df\u304c\u5fc5\u8981<\/td><td>\u5206\u6563\u914d\u7f6e\u3067\u52b9\u7387\u7684<\/td><\/tr><tr><td>\u30ad\u30e3\u30c3\u30b7\u30e5\u52b9\u7387<\/td><td>\u9ad8\u3044\uff08\u9023\u7d9a\u30a2\u30af\u30bb\u30b9\u6642\uff09<\/td><td>\u4e2d\u7a0b\u5ea6\uff08\u30d6\u30ed\u30c3\u30af\u9593\u79fb\u52d5\u6642\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<h4 class=\"wp-block-heading\" id=\"i-8\">\u91cd\u8981\u306a\u5b9f\u88c5\u306e\u9055\u3044<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ vector\u306e\u5185\u90e8\u5b9f\u88c5\uff08\u6982\u5ff5\u7684\u306a\u8868\u73fe\uff09\ntemplate &lt;typename T&gt;\nclass vector {\n    T* elements;        \/\/ \u5358\u4e00\u306e\u9023\u7d9a\u30e1\u30e2\u30ea\u30d6\u30ed\u30c3\u30af\n    size_t size;\n    size_t capacity;\n};\n\n\/\/ deque\u306e\u5185\u90e8\u5b9f\u88c5\uff08\u6982\u5ff5\u7684\u306a\u8868\u73fe\uff09\ntemplate &lt;typename T&gt;\nclass deque {\n    T** map;           \/\/ \u30d6\u30ed\u30c3\u30af\u30dd\u30a4\u30f3\u30bf\u306e\u914d\u5217\n    size_t map_size;\n    size_t block_size; \/\/ \u5404\u30d6\u30ed\u30c3\u30af\u306e\u56fa\u5b9a\u30b5\u30a4\u30ba\n    size_t start;      \/\/ \u5148\u982d\u8981\u7d20\u306e\u4f4d\u7f6e\n    size_t finish;     \/\/ \u672b\u5c3e\u8981\u7d20\u306e\u4f4d\u7f6e\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-9\">\u64cd\u4f5c\u5225\u306e\u5b9f\u884c\u901f\u5ea6\u3092\u6bd4\u8f03\u691c\u8a3c<\/h3>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u30b3\u30fc\u30c9\u3067\u3001\u4e3b\u8981\u306a\u64cd\u4f5c\u306e\u6027\u80fd\u3092\u6bd4\u8f03\u3057\u3066\u307f\u307e\u3057\u3087\u3046\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;vector&gt;\n#include &lt;deque&gt;\n#include &lt;chrono&gt;\n#include &lt;iostream&gt;\n\ntemplate&lt;typename Container&gt;\ndouble measure_operations() {\n    auto start = std::chrono::high_resolution_clock::now();\n\n    Container c;\n\n    \/\/ \u5148\u982d\u3078\u306e\u633f\u5165\u30c6\u30b9\u30c8\n    for(int i = 0; i &lt; 100000; ++i) {\n        c.push_front(i);  \/\/ deque\u306e\u307f\u76f4\u63a5\u30b5\u30dd\u30fc\u30c8\n    }\n\n    \/\/ \u30e9\u30f3\u30c0\u30e0\u30a2\u30af\u30bb\u30b9\u30c6\u30b9\u30c8\n    for(int i = 0; i &lt; 100000; ++i) {\n        volatile auto val = c[i];\n    }\n\n    auto end = std::chrono::high_resolution_clock::now();\n    return std::chrono::duration&lt;double&gt;(end - start).count();\n}\n\nint main() {\n    \/\/ deque\u306e\u8a08\u6e2c\n    double deque_time = measure_operations&lt;std::deque&lt;int&gt;&gt;();\n    std::cout &lt;&lt; \"deque\u6642\u9593: \" &lt;&lt; deque_time &lt;&lt; \"\u79d2\\n\";\n\n    \/\/ vector\u3067\u306f\u5148\u982d\u633f\u5165\u306b insert(begin(), val) \u3092\u4f7f\u7528\n    \/\/ \u203b \u975e\u52b9\u7387\u306a\u305f\u3081\u3001\u53c2\u8003\u5024\u3068\u3057\u3066\u63b2\u8f09\n    double vector_time = measure_operations&lt;std::vector&lt;int&gt;&gt;();\n    std::cout &lt;&lt; \"vector\u6642\u9593: \" &lt;&lt; vector_time &lt;&lt; \"\u79d2\\n\";\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-10\">\u64cd\u4f5c\u5225\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6bd4\u8f03\u8868<\/h4>\n\n\n<div id=\"id-dca1f562-8409-4ef7-a6da-ff104fb47051\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u64cd\u4f5c<\/th><th>vector<\/th><th>deque<\/th><th>\u52dd\u8005<\/th><\/tr><\/thead><tbody><tr><td>\u672b\u5c3e\u3078\u306e\u633f\u5165<\/td><td>O(1)\u203b<\/td><td>O(1)<\/td><td>\u540c\u7b49<\/td><\/tr><tr><td>\u5148\u982d\u3078\u306e\u633f\u5165<\/td><td>O(n)<\/td><td>O(1)<\/td><td>deque<\/td><\/tr><tr><td>\u4e2d\u592e\u3078\u306e\u633f\u5165<\/td><td>O(n)<\/td><td>O(n)<\/td><td>\u540c\u7b49<\/td><\/tr><tr><td>\u30e9\u30f3\u30c0\u30e0\u30a2\u30af\u30bb\u30b9<\/td><td>O(1)<\/td><td>O(1)\u2020<\/td><td>vector<\/td><\/tr><tr><td>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf<\/td><td>\u5927\u304d\u3044<\/td><td>\u52b9\u7387\u7684<\/td><td>deque<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p>\u203b: \u305f\u3060\u3057\u3001\u5bb9\u91cf\u4e0d\u8db3\u6642\u306f\u518d\u914d\u7f6e\u304c\u5fc5\u8981<br>\u2020: \u30d6\u30ed\u30c3\u30af\u9593\u79fb\u52d5\u304c\u3042\u308b\u305f\u3081\u3001\u5b9f\u969b\u306e\u901f\u5ea6\u306fvector\u3088\u308a\u82e5\u5e72\u9045\u3044<\/p>\n\n\n\n<p>\u3053\u306e\u9055\u3044\u3092\u8e0f\u307e\u3048\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u4f7f\u3044\u5206\u3051\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>vector\u3092\u9078\u3076\u3079\u304d\u5834\u5408<\/strong>:<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8981\u7d20\u6570\u304c\u56fa\u5b9a\u7684<\/li>\n\n\n\n<li>\u30e9\u30f3\u30c0\u30e0\u30a2\u30af\u30bb\u30b9\u304c\u983b\u7e41<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u306e\u9023\u7d9a\u6027\u304c\u91cd\u8981<\/li>\n\n\n\n<li>\u672b\u5c3e\u306e\u64cd\u4f5c\u304c\u4e3b<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>deque\u3092\u9078\u3076\u3079\u304d\u5834\u5408<\/strong>:<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e21\u7aef\u3067\u306e\u64cd\u4f5c\u304c\u983b\u7e41<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u306e\u52b9\u7387\u7684\u306a\u4f7f\u7528\u304c\u5fc5\u8981<\/li>\n\n\n\n<li>\u52d5\u7684\u306a\u30b5\u30a4\u30ba\u5909\u66f4\u304c\u983b\u7e41<\/li>\n\n\n\n<li>\u5927\u898f\u6a21\u30c7\u30fc\u30bf\u306e\u7ba1\u7406<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u9055\u3044\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u8981\u4ef6\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u30b3\u30f3\u30c6\u30ca\u3092\u9078\u629e\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-11\">deque\u304c\u6700\u5f37\u306e7\u3064\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-12\">\u4e21\u7aef\u306e\u30d7\u30c3\u30b7\u30e5\/\u30dd\u30c3\u30d7\u304c\u983b\u7e41\u306a\u5834\u5408<\/h3>\n\n\n\n<p>\u30ad\u30e5\u30fc\u3084\u30b9\u30bf\u30c3\u30af\u306e\u5b9f\u88c5\u306b\u304a\u3044\u3066\u3001deque\u306f\u7406\u60f3\u7684\u306a\u9078\u629e\u80a2\u3068\u306a\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u3001\u751f\u7523\u8005-\u6d88\u8cbb\u8005\u30d1\u30bf\u30fc\u30f3\u306e\u5b9f\u88c5\u4f8b\u3067\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;deque&gt;\n#include &lt;mutex&gt;\n#include &lt;condition_variable&gt;\n\ntemplate&lt;typename T&gt;\nclass ThreadSafeQueue {\nprivate:\n    std::deque&lt;T&gt; queue;\n    mutable std::mutex mutex;\n    std::condition_variable not_empty;\n\npublic:\n    void push_front(T value) {\n        std::lock_guard&lt;std::mutex&gt; lock(mutex);\n        queue.push_front(std::move(value));\n        not_empty.notify_one();\n    }\n\n    T pop_back() {\n        std::unique_lock&lt;std::mutex&gt; lock(mutex);\n        not_empty.wait(lock, [this] { return !queue.empty(); });\n        T value = std::move(queue.back());\n        queue.pop_back();\n        return value;\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-13\">\u30e1\u30e2\u30ea\u52b9\u7387\u3092\u91cd\u8996\u3059\u308b\u5927\u898f\u6a21\u30c7\u30fc\u30bf\u51e6\u7406<\/h3>\n\n\n\n<p>\u5927\u898f\u6a21\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u3092\u6271\u3046\u969b\u3001deque\u306f\u30e1\u30e2\u30ea\u306e\u52b9\u7387\u7684\u306a\u4f7f\u7528\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;deque&gt;\n#include &lt;memory&gt;\n\nclass BigDataProcessor {\nprivate:\n    std::deque&lt;std::unique_ptr&lt;LargeObject&gt;&gt; objects;\n\npublic:\n    void process_batch(const std::vector&lt;RawData&gt;&amp; batch) {\n        \/\/ \u30e1\u30e2\u30ea\u52b9\u7387\u7684\u306a\u51e6\u7406\n        for (const auto&amp; data : batch) {\n            objects.push_back(std::make_unique&lt;LargeObject&gt;(data));\n            if (objects.size() &gt; MAX_BATCH_SIZE) {\n                process_oldest();\n                objects.pop_front();  \/\/ \u53e4\u3044\u30c7\u30fc\u30bf\u3092\u52b9\u7387\u7684\u306b\u524a\u9664\n            }\n        }\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-14\">\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u30c7\u30fc\u30bf\u306e\u51e6\u7406\u30ad\u30e5\u30fc<\/h3>\n\n\n\n<p>\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u30c7\u30fc\u30bf\u306e\u51e6\u7406\u306b\u6700\u9069\u3067\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">template&lt;typename T&gt;\nclass StreamProcessor {\nprivate:\n    std::deque&lt;T&gt; buffer;\n    size_t max_size;\n\npublic:\n    StreamProcessor(size_t size) : max_size(size) {}\n\n    void add_data(T data) {\n        if (buffer.size() &gt;= max_size) {\n            buffer.pop_front();  \/\/ \u53e4\u3044\u30c7\u30fc\u30bf\u3092\u524a\u9664\n        }\n        buffer.push_back(std::move(data));\n        process_buffer();\n    }\n\n    void process_buffer() {\n        \/\/ \u30d0\u30c3\u30d5\u30a1\u5185\u306e\u30c7\u30fc\u30bf\u3092\u51e6\u7406\n        for (const auto&amp; item : buffer) {\n            \/\/ \u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u51e6\u7406\u30ed\u30b8\u30c3\u30af\n        }\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-15\">\u30b9\u30e9\u30a4\u30c7\u30a3\u30f3\u30b0\u30a6\u30a3\u30f3\u30c9\u30a6\u306e\u5b9f\u88c5<\/h3>\n\n\n\n<p>\u6642\u7cfb\u5217\u30c7\u30fc\u30bf\u306e\u5206\u6790\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u5b9f\u88c5\u306b\u4f7f\u7528\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">template&lt;typename T&gt;\nclass SlidingWindow {\nprivate:\n    std::deque&lt;T&gt; window;\n    size_t window_size;\n\npublic:\n    SlidingWindow(size_t size) : window_size(size) {}\n\n    void add_element(T element) {\n        if (window.size() &gt;= window_size) {\n            window.pop_front();\n        }\n        window.push_back(std::move(element));\n    }\n\n    double calculate_moving_average() const {\n        if (window.empty()) return 0.0;\n        return std::accumulate(window.begin(), window.end(), 0.0) \/ window.size();\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-16\">\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u74b0\u5883\u3067\u306e\u30d0\u30c3\u30d5\u30a1<\/h3>\n\n\n\n<p>\u4e26\u884c\u51e6\u7406\u306b\u304a\u3051\u308b\u30c7\u30fc\u30bf\u30d0\u30c3\u30d5\u30a1\u30ea\u30f3\u30b0\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">template&lt;typename T&gt;\nclass ThreadSafeBuffer {\nprivate:\n    std::deque&lt;T&gt; buffer;\n    mutable std::mutex mtx;\n    std::condition_variable cv;\n    size_t capacity;\n\npublic:\n    ThreadSafeBuffer(size_t max_size) : capacity(max_size) {}\n\n    bool try_push(T value) {\n        std::lock_guard&lt;std::mutex&gt; lock(mtx);\n        if (buffer.size() &gt;= capacity) {\n            return false;\n        }\n        buffer.push_back(std::move(value));\n        cv.notify_one();\n        return true;\n    }\n\n    T try_pop() {\n        std::unique_lock&lt;std::mutex&gt; lock(mtx);\n        if (cv.wait_for(lock, std::chrono::milliseconds(100), \n            [this] { return !buffer.empty(); })) {\n            T value = std::move(buffer.front());\n            buffer.pop_front();\n            return value;\n        }\n        throw std::runtime_error(\"Buffer empty\");\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-17\">\u30e1\u30e2\u30ea\u30d5\u30e9\u30b0\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u56de\u907f<\/h3>\n\n\n\n<p>\u9577\u6642\u9593\u904b\u7528\u30b7\u30b9\u30c6\u30e0\u3067\u306e\u30e1\u30e2\u30ea\u7ba1\u7406\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">template&lt;typename T&gt;\nclass FragmentationFreeContainer {\nprivate:\n    std::deque&lt;T&gt; data;\n    size_t compact_threshold;\n\npublic:\n    FragmentationFreeContainer(size_t threshold) : compact_threshold(threshold) {}\n\n    void add_element(T element) {\n        data.push_back(std::move(element));\n        if (should_compact()) {\n            compact();\n        }\n    }\n\nprivate:\n    bool should_compact() const {\n        return data.size() &gt; compact_threshold;\n    }\n\n    void compact() {\n        std::deque&lt;T&gt; new_data;\n        for (auto&amp; item : data) {\n            if (is_valid(item)) {\n                new_data.push_back(std::move(item));\n            }\n        }\n        data.swap(new_data);  \/\/ \u52b9\u7387\u7684\u306a\u30e1\u30e2\u30ea\u518d\u7de8\u6210\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-18\">\u52d5\u7684\u306a\u30e1\u30e2\u30ea\u5272\u308a\u5f53\u3066\u304c\u5fc5\u8981\u306a\u5834\u5408<\/h3>\n\n\n\n<p>\u53ef\u5909\u30b5\u30a4\u30ba\u306e\u30c7\u30fc\u30bf\u69cb\u9020\u3092\u52b9\u7387\u7684\u306b\u7ba1\u7406\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">template&lt;typename T&gt;\nclass DynamicBuffer {\nprivate:\n    std::deque&lt;std::vector&lt;T&gt;&gt; chunks;\n    size_t chunk_size;\n\npublic:\n    DynamicBuffer(size_t size) : chunk_size(size) {}\n\n    void add_data(const std::vector&lt;T&gt;&amp; data) {\n        std::vector&lt;T&gt; chunk;\n        chunk.reserve(chunk_size);\n\n        for (const auto&amp; item : data) {\n            chunk.push_back(item);\n            if (chunk.size() &gt;= chunk_size) {\n                chunks.push_back(std::move(chunk));\n                chunk = std::vector&lt;T&gt;();\n                chunk.reserve(chunk_size);\n            }\n        }\n\n        if (!chunk.empty()) {\n            chunks.push_back(std::move(chunk));\n        }\n    }\n\n    void process_chunks() {\n        while (!chunks.empty()) {\n            auto&amp; chunk = chunks.front();\n            \/\/ \u30c1\u30e3\u30f3\u30af\u51e6\u7406\u30ed\u30b8\u30c3\u30af\n            chunks.pop_front();  \/\/ \u51e6\u7406\u6e08\u307f\u30c1\u30e3\u30f3\u30af\u3092\u52b9\u7387\u7684\u306b\u524a\u9664\n        }\n    }\n};<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306f\u3001deque\u306e\u7279\u6027\u3092\u6700\u5927\u9650\u306b\u6d3b\u7528\u3057\u3001\u52b9\u7387\u7684\u306a\u30e1\u30e2\u30ea\u7ba1\u7406\u3068\u9ad8\u3044\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002<br>\u5404\u5b9f\u88c5\u4f8b\u306f\u5b9f\u969b\u306e\u958b\u767a\u30b7\u30fc\u30f3\u3067\u5fdc\u7528\u53ef\u80fd\u306a\u8a2d\u8a08\u30d1\u30bf\u30fc\u30f3\u3092\u793a\u3057\u3066\u304a\u308a\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-19\">deque\u306e\u5b9f\u8df5\u7684\u306a\u4f7f\u3044\u65b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-20\">\u57fa\u672c\u7684\u306a\u64cd\u4f5c\u65b9\u6cd5\u3092\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u89e3\u8aac<\/h3>\n\n\n\n<p>\u307e\u305a\u3001deque\u306e\u57fa\u672c\u7684\u306a\u64cd\u4f5c\u3092\u7db2\u7f85\u7684\u306b\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;deque&gt;\n#include &lt;iostream&gt;\n#include &lt;algorithm&gt;\n\nclass DequeDemo {\npublic:\n    static void demonstrate_basic_operations() {\n        std::deque&lt;int&gt; d;  \/\/ \u7a7a\u306edeque\u3092\u4f5c\u6210\n\n        \/\/ \u8981\u7d20\u306e\u8ffd\u52a0\n        d.push_back(1);     \/\/ \u672b\u5c3e\u306b\u8ffd\u52a0: [1]\n        d.push_front(0);    \/\/ \u5148\u982d\u306b\u8ffd\u52a0: [0,1]\n        d.insert(d.begin() + 1, 5);  \/\/ \u6307\u5b9a\u4f4d\u7f6e\u306b\u633f\u5165: [0,5,1]\n\n        \/\/ \u5bb9\u91cf\u3068\u8981\u7d20\u6570\u306e\u78ba\u8a8d\n        std::cout &lt;&lt; \"Size: \" &lt;&lt; d.size() &lt;&lt; std::endl;        \/\/ 3\n        std::cout &lt;&lt; \"Empty?: \" &lt;&lt; d.empty() &lt;&lt; std::endl;     \/\/ false\n\n        \/\/ \u8981\u7d20\u3078\u306e\u30a2\u30af\u30bb\u30b9\n        std::cout &lt;&lt; \"First: \" &lt;&lt; d.front() &lt;&lt; std::endl;      \/\/ 0\n        std::cout &lt;&lt; \"Last: \" &lt;&lt; d.back() &lt;&lt; std::endl;        \/\/ 1\n        std::cout &lt;&lt; \"At index 1: \" &lt;&lt; d[1] &lt;&lt; std::endl;      \/\/ 5\n\n        \/\/ \u5b89\u5168\u306a\u30a2\u30af\u30bb\u30b9\uff08\u7bc4\u56f2\u30c1\u30a7\u30c3\u30af\u4ed8\u304d\uff09\n        try {\n            std::cout &lt;&lt; d.at(10) &lt;&lt; std::endl;  \/\/ \u4f8b\u5916\u767a\u751f\n        } catch (const std::out_of_range&amp; e) {\n            std::cerr &lt;&lt; \"\u7bc4\u56f2\u5916\u30a2\u30af\u30bb\u30b9: \" &lt;&lt; e.what() &lt;&lt; std::endl;\n        }\n\n        \/\/ \u8981\u7d20\u306e\u524a\u9664\n        d.pop_front();      \/\/ \u5148\u982d\u8981\u7d20\u3092\u524a\u9664\n        d.pop_back();       \/\/ \u672b\u5c3e\u8981\u7d20\u3092\u524a\u9664\n\n        \/\/ \u5168\u8981\u7d20\u306e\u524a\u9664\n        d.clear();\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-21\">\u30a4\u30c6\u30ec\u30fc\u30bf\u306e\u6b63\u3057\u3044\u4f7f\u3044\u65b9\u3068\u6ce8\u610f\u70b9<\/h3>\n\n\n\n<p>deque\u306e\u30a4\u30c6\u30ec\u30fc\u30bf\u306f\u53cc\u65b9\u5411\u30a4\u30c6\u30ec\u30fc\u30bf\u306e\u7279\u6027\u3092\u6301\u3061\u3001\u69d8\u3005\u306a\u64cd\u4f5c\u304c\u53ef\u80fd\u3067\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;deque&gt;\n#include &lt;algorithm&gt;\n#include &lt;iostream&gt;\n\nclass DequeIteratorDemo {\npublic:\n    static void demonstrate_iterators() {\n        std::deque&lt;int&gt; d = {1, 2, 3, 4, 5};\n\n        \/\/ \u57fa\u672c\u7684\u306a\u30a4\u30c6\u30ec\u30fc\u30b7\u30e7\u30f3\n        std::cout &lt;&lt; \"Forward iteration: \";\n        for (auto it = d.begin(); it != d.end(); ++it) {\n            std::cout &lt;&lt; *it &lt;&lt; \" \";\n        }\n        std::cout &lt;&lt; std::endl;\n\n        \/\/ \u9006\u30a4\u30c6\u30ec\u30fc\u30b7\u30e7\u30f3\n        std::cout &lt;&lt; \"Reverse iteration: \";\n        for (auto it = d.rbegin(); it != d.rend(); ++it) {\n            std::cout &lt;&lt; *it &lt;&lt; \" \";\n        }\n        std::cout &lt;&lt; std::endl;\n\n        \/\/ \u30a4\u30c6\u30ec\u30fc\u30bf\u3092\u4f7f\u7528\u3057\u305f\u8981\u7d20\u306e\u5909\u66f4\n        for (auto it = d.begin(); it != d.end(); ++it) {\n            *it *= 2;  \/\/ \u5404\u8981\u7d20\u30922\u500d\n        }\n\n        \/\/ \u30a4\u30c6\u30ec\u30fc\u30bf\u306e\u7121\u52b9\u5316\u306b\u6ce8\u610f\n        auto it = d.begin() + 2;\n        d.push_front(0);  \/\/ \u3053\u306e\u64cd\u4f5c\u3067it\u306f\u7121\u52b9\u5316\u3055\u308c\u308b\uff01\n        \/\/ *it;  \/\/ \u5371\u967a\uff01\u672a\u5b9a\u7fa9\u52d5\u4f5c\n\n        \/\/ \u5b89\u5168\u306a\u30a4\u30c6\u30ec\u30fc\u30bf\u306e\u4f7f\u7528\u4f8b\n        void safe_iterator_usage(std::deque&lt;int&gt;&amp; deq) {\n            auto it = deq.begin();\n            while (it != deq.end()) {\n                if (*it % 2 == 0) {\n                    it = deq.erase(it);  \/\/ erase\u306f\u6b21\u306e\u6709\u52b9\u306a\u30a4\u30c6\u30ec\u30fc\u30bf\u3092\u8fd4\u3059\n                } else {\n                    ++it;\n                }\n            }\n        }\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-22\">\u30e1\u30e2\u30ea\u7ba1\u7406\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h3>\n\n\n\n<p>\u52b9\u7387\u7684\u306a\u30e1\u30e2\u30ea\u7ba1\u7406\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306e\u305f\u3081\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u7d39\u4ecb\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;deque&gt;\n#include &lt;memory&gt;\n#include &lt;chrono&gt;\n\nclass DequeMemoryManagement {\npublic:\n    \/\/ \u30e1\u30e2\u30ea\u52b9\u7387\u3092\u8003\u616e\u3057\u305fdeque\u306e\u4f7f\u7528\u4f8b\n    template&lt;typename T&gt;\n    class EfficientDeque {\n    private:\n        std::deque&lt;T&gt; data;\n        size_t max_size;\n\n    public:\n        EfficientDeque(size_t size_limit) : max_size(size_limit) {\n            \/\/ \u4e88\u6e2c\u3055\u308c\u308b\u8981\u7d20\u6570\u306b\u57fa\u3065\u3044\u3066\u30e1\u30e2\u30ea\u3092\u4e8b\u524d\u78ba\u4fdd\n            \/\/ \u203bdeque\u306f\u5b9f\u969b\u306b\u306f\u30d6\u30ed\u30c3\u30af\u5358\u4f4d\u3067\u78ba\u4fdd\u3055\u308c\u308b\u305f\u3081\u3001\n            \/\/ \u53b3\u5bc6\u306a\u4e8b\u524d\u78ba\u4fdd\u306f\u4e0d\u8981\n        }\n\n        void add_element(T element) {\n            \/\/ \u6700\u5927\u30b5\u30a4\u30ba\u3092\u8d85\u3048\u306a\u3044\u3088\u3046\u306b\u7ba1\u7406\n            if (data.size() &gt;= max_size) {\n                data.pop_front();  \/\/ FIFO\u65b9\u5f0f\u3067\u53e4\u3044\u8981\u7d20\u3092\u524a\u9664\n            }\n            data.push_back(std::move(element));  \/\/ \u52b9\u7387\u7684\u306a\u8981\u7d20\u306e\u79fb\u52d5\n        }\n\n        \/\/ \u30d0\u30c3\u30c1\u51e6\u7406\u306b\u3088\u308b\u52b9\u7387\u5316\n        void add_batch(const std::vector&lt;T&gt;&amp; batch) {\n            \/\/ \u4e00\u5ea6\u306b\u8907\u6570\u306e\u8981\u7d20\u3092\u8ffd\u52a0\n            for (const auto&amp; element : batch) {\n                add_element(std::move(element));\n            }\n        }\n\n        \/\/ \u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u6700\u9069\u5316\n        void optimize() {\n            if (data.size() &lt; max_size \/ 2) {\n                std::deque&lt;T&gt; temp(std::make_move_iterator(data.begin()),\n                                 std::make_move_iterator(data.end()));\n                data.swap(temp);  \/\/ \u65b0\u3057\u3044deque\u3068\u4ea4\u63db\u3057\u3066\u30e1\u30e2\u30ea\u3092\u6700\u9069\u5316\n            }\n        }\n\n        \/\/ \u30c7\u30b9\u30c8\u30e9\u30af\u30bf\u3067\u306e\u30af\u30ea\u30fc\u30f3\u30a2\u30c3\u30d7\n        ~EfficientDeque() {\n            data.clear();  \/\/ \u660e\u793a\u7684\u306a\u30af\u30ea\u30fc\u30f3\u30a2\u30c3\u30d7\n        }\n    };\n\n    \/\/ \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6e2c\u5b9a\u7528\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\n    static void measure_performance(const std::function&lt;void()&gt;&amp; operation) {\n        auto start = std::chrono::high_resolution_clock::now();\n        operation();\n        auto end = std::chrono::high_resolution_clock::now();\n        auto duration = std::chrono::duration_cast&lt;std::chrono::microseconds&gt;\n                       (end - start);\n        std::cout &lt;&lt; \"Operation took: \" &lt;&lt; duration.count() &lt;&lt; \" microseconds\" \n                  &lt;&lt; std::endl;\n    }\n};<\/pre>\n\n\n\n<p>\u91cd\u8981\u306a\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30e1\u30e2\u30ea\u7ba1\u7406\u306e\u30dd\u30a4\u30f3\u30c8<\/strong>:<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u53ef\u80fd\u306a\u9650\u308a\u8981\u7d20\u306e\u79fb\u52d5\u3092\u6d3b\u7528\uff08<code>std::move<\/code>\uff09<\/li>\n\n\n\n<li>\u4e0d\u8981\u306a\u8981\u7d20\u306e\u30af\u30ea\u30fc\u30f3\u30a2\u30c3\u30d7\u3092\u5b9a\u671f\u7684\u306b\u5b9f\u65bd<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u3092\u76e3\u8996\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u6700\u9069\u5316<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6700\u9069\u5316<\/strong>:<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d0\u30c3\u30c1\u51e6\u7406\u3092\u6d3b\u7528\u3057\u3066\u64cd\u4f5c\u56de\u6570\u3092\u524a\u6e1b<\/li>\n\n\n\n<li>\u30a4\u30c6\u30ec\u30fc\u30bf\u306e\u7121\u52b9\u5316\u306b\u6ce8\u610f<\/li>\n\n\n\n<li>\u9069\u5207\u306a\u30b5\u30a4\u30ba\u7ba1\u7406\u306b\u3088\u308b\u4e0d\u8981\u306a\u30e1\u30e2\u30ea\u5272\u308a\u5f53\u3066\u306e\u56de\u907f<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30a8\u30e9\u30fc\u51e6\u7406\u3068\u30c7\u30d0\u30c3\u30b0<\/strong>:<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7bc4\u56f2\u30c1\u30a7\u30c3\u30af\u4ed8\u304d\u306e\u30a2\u30af\u30bb\u30b9\u65b9\u6cd5\u3092\u4f7f\u7528\uff08<code>at()<\/code>\u30e1\u30bd\u30c3\u30c9\uff09<\/li>\n\n\n\n<li>\u4f8b\u5916\u51e6\u7406\u306e\u9069\u5207\u306a\u5b9f\u88c5<\/li>\n\n\n\n<li>\u30c7\u30d0\u30c3\u30b0\u60c5\u5831\u306e\u51fa\u529b\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u8a08\u6e2c<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u5b9f\u8df5\u7684\u306a\u4f7f\u7528\u65b9\u6cd5\u3092\u7406\u89e3\u3057\u3001\u9069\u5207\u306b\u5b9f\u88c5\u3059\u308b\u3053\u3068\u3067\u3001deque\u306e\u5229\u70b9\u3092\u6700\u5927\u9650\u306b\u6d3b\u304b\u3057\u305f\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-23\">deque\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6700\u5927\u9650\u5f15\u304d\u51fa\u3059\u30b3\u30c4<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-24\">\u30e1\u30e2\u30ea\u30a2\u30ed\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u6700\u9069\u5316\u3059\u308b\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n\n\n\n<p>\u30e1\u30e2\u30ea\u7ba1\u7406\u306e\u6700\u9069\u5316\u306f\u3001deque\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u308b\u91cd\u8981\u306a\u8981\u7d20\u3067\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;deque&gt;\n#include &lt;chrono&gt;\n#include &lt;memory&gt;\n#include &lt;numeric&gt;\n\nclass DequeOptimizer {\nprivate:\n    \/\/ \u30ab\u30b9\u30bf\u30e0\u30a2\u30ed\u30b1\u30fc\u30bf\u306e\u5b9f\u88c5\u4f8b\n    template&lt;typename T&gt;\n    class ChunkAllocator : public std::allocator&lt;T&gt; {\n    private:\n        static constexpr size_t CHUNK_SIZE = 512; \/\/ \u9069\u5207\u306a\u30c1\u30e3\u30f3\u30af\u30b5\u30a4\u30ba\n\n    public:\n        T* allocate(size_t n) {\n            \/\/ \u30c1\u30e3\u30f3\u30af\u30b5\u30a4\u30ba\u306b\u5408\u308f\u305b\u3066\u8abf\u6574\n            size_t aligned_size = ((n + CHUNK_SIZE - 1) \/ CHUNK_SIZE) * CHUNK_SIZE;\n            return std::allocator&lt;T&gt;::allocate(aligned_size);\n        }\n\n        void deallocate(T* p, size_t n) {\n            std::allocator&lt;T&gt;::deallocate(p, n);\n        }\n    };\n\npublic:\n    \/\/ \u6700\u9069\u5316\u3055\u308c\u305fdeque\u5b9f\u88c5\n    template&lt;typename T&gt;\n    class OptimizedDeque {\n    private:\n        std::deque&lt;T, ChunkAllocator&lt;T&gt;&gt; data;\n        size_t reserved_size;\n\n    public:\n        OptimizedDeque(size_t initial_size = 1024) : reserved_size(initial_size) {\n            \/\/ \u521d\u671f\u30b5\u30a4\u30ba\u306e\u78ba\u4fdd\n            data.resize(initial_size);\n            data.clear();  \/\/ \u30b5\u30a4\u30ba\u306f\u30af\u30ea\u30a2\u3057\u3064\u3064\u3001\u30ad\u30e3\u30d1\u30b7\u30c6\u30a3\u306f\u7dad\u6301\n        }\n\n        void add_efficiently(const T&amp; value) {\n            if (data.size() &gt;= reserved_size) {\n                reserved_size *= 2;  \/\/ \u6307\u6570\u7684\u306a\u6210\u9577\u6226\u7565\n            }\n            data.push_back(value);\n        }\n\n        \/\/ \u30d0\u30c3\u30c1\u64cd\u4f5c\u306e\u6700\u9069\u5316\n        template&lt;typename Iterator&gt;\n        void add_batch(Iterator begin, Iterator end) {\n            size_t batch_size = std::distance(begin, end);\n            if (data.size() + batch_size &gt; reserved_size) {\n                reserved_size = std::max(reserved_size * 2, data.size() + batch_size);\n            }\n            std::copy(begin, end, std::back_inserter(data));\n        }\n    };\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-25\">\u30ad\u30e3\u30c3\u30b7\u30e5\u30d5\u30ec\u30f3\u30c9\u30ea\u30fc\u306a\u5b9f\u88c5\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u52b9\u7387\u7684\u306a\u5229\u7528\u306f\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u5927\u304d\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class CacheFriendlyDeque {\nprivate:\n    static constexpr size_t CACHE_LINE_SIZE = 64; \/\/ \u4e00\u822c\u7684\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u30e9\u30a4\u30f3\u30b5\u30a4\u30ba\n\n    \/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u30e9\u30a4\u30f3\u5883\u754c\u306b\u30a2\u30e9\u30a4\u30f3\u30e1\u30f3\u30c8\u3055\u308c\u305f\u69cb\u9020\u4f53\n    struct alignas(CACHE_LINE_SIZE) CacheAlignedNode {\n        std::array&lt;int, 16&gt; data;  \/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u30e9\u30a4\u30f3\u5185\u306b\u53ce\u307e\u308b\u30b5\u30a4\u30ba\n        size_t size;\n    };\n\npublic:\n    template&lt;typename T&gt;\n    class CacheOptimizedDeque {\n    private:\n        std::deque&lt;CacheAlignedNode&gt; data;\n\n    public:\n        void process_batch() {\n            \/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u30d5\u30ec\u30f3\u30c9\u30ea\u30fc\u306a\u51e6\u7406\n            for (auto&amp; node : data) {\n                \/\/ \u9023\u7d9a\u3057\u305f\u30e1\u30e2\u30ea\u30a2\u30af\u30bb\u30b9\u3092\u6d3b\u7528\n                for (size_t i = 0; i &lt; node.size; ++i) {\n                    process_element(node.data[i]);\n                }\n            }\n        }\n\n    private:\n        void process_element(int&amp; element) {\n            \/\/ \u8981\u7d20\u5358\u4f4d\u306e\u51e6\u7406\n        }\n    };\n\n    \/\/ \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u8a08\u6e2c\u6a5f\u80fd\n    static void benchmark_cache_efficiency() {\n        CacheOptimizedDeque&lt;int&gt; optimized_deque;\n        std::deque&lt;int&gt; standard_deque;\n\n        auto start = std::chrono::high_resolution_clock::now();\n        \/\/ \u30d9\u30f3\u30c1\u30de\u30fc\u30af\u51e6\u7406\n        auto end = std::chrono::high_resolution_clock::now();\n        auto duration = std::chrono::duration_cast&lt;std::chrono::microseconds&gt;\n                       (end - start);\n\n        std::cout &lt;&lt; \"\u51e6\u7406\u6642\u9593: \" &lt;&lt; duration.count() &lt;&lt; \"\u30de\u30a4\u30af\u30ed\u79d2\\n\";\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-26\">\u3088\u304f\u3042\u308b\u843d\u3068\u3057\u7a74\u3068\u5bfe\u51e6\u6cd5<\/h3>\n\n\n\n<p>deque\u3092\u4f7f\u7528\u3059\u308b\u969b\u306b\u3088\u304f\u906d\u9047\u3059\u308b\u554f\u984c\u3068\u305d\u306e\u89e3\u6c7a\u7b56\u3092\u7d39\u4ecb\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30e1\u30e2\u30ea\u30d5\u30e9\u30b0\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u5bfe\u7b56<\/strong>:<\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">template&lt;typename T&gt;\nclass FragmentationHandler {\npublic:\n    static void defragment(std::deque&lt;T&gt;&amp; deque) {\n        if (needs_defragmentation(deque)) {\n            std::deque&lt;T&gt; temp;\n            temp.insert(temp.end(), \n                       std::make_move_iterator(deque.begin()),\n                       std::make_move_iterator(deque.end()));\n            deque.swap(temp);\n        }\n    }\n\nprivate:\n    static bool needs_defragmentation(const std::deque&lt;T&gt;&amp; deque) {\n        \/\/ \u30d5\u30e9\u30b0\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u691c\u51fa\u30ed\u30b8\u30c3\u30af\n        return deque.size() &lt; deque.max_size() \/ 2;\n    }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30a4\u30c6\u30ec\u30fc\u30bf\u7121\u52b9\u5316\u306e\u9632\u6b62<\/strong>:<\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">template&lt;typename T&gt;\nclass SafeDequeIterator {\nprivate:\n    std::deque&lt;T&gt;&amp; deque;\n    size_t current_index;\n\npublic:\n    SafeDequeIterator(std::deque&lt;T&gt;&amp; d, size_t start = 0)\n        : deque(d), current_index(start) {}\n\n    T&amp; get_current() {\n        if (current_index &gt;= deque.size()) {\n            throw std::out_of_range(\"Iterator out of range\");\n        }\n        return deque[current_index];\n    }\n\n    bool move_next() {\n        if (current_index + 1 &lt; deque.size()) {\n            ++current_index;\n            return true;\n        }\n        return false;\n    }\n};<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0<\/strong>:<\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class DequePerformanceMonitor {\npublic:\n    template&lt;typename Operation&gt;\n    static void measure_operation(const std::string&amp; op_name, Operation op) {\n        auto start = std::chrono::high_resolution_clock::now();\n        op();\n        auto end = std::chrono::high_resolution_clock::now();\n\n        auto duration = std::chrono::duration_cast&lt;std::chrono::microseconds&gt;\n                       (end - start);\n\n        std::cout &lt;&lt; op_name &lt;&lt; \"\u306e\u5b9f\u884c\u6642\u9593: \" &lt;&lt; duration.count() \n                  &lt;&lt; \"\u30de\u30a4\u30af\u30ed\u79d2\\n\";\n    }\n};<\/pre>\n\n\n\n<p>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30e1\u30e2\u30ea\u7ba1\u7406\u306e\u6700\u9069\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9069\u5207\u306a\u521d\u671f\u30b5\u30a4\u30ba\u306e\u8a2d\u5b9a<\/li>\n\n\n\n<li>\u30d0\u30c3\u30c1\u64cd\u4f5c\u306e\u6d3b\u7528<\/li>\n\n\n\n<li>\u4e0d\u8981\u306a\u30e1\u30e2\u30ea\u518d\u5272\u308a\u5f53\u3066\u306e\u56de\u907f<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30ad\u30e3\u30c3\u30b7\u30e5\u52b9\u7387\u306e\u5411\u4e0a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c7\u30fc\u30bf\u69cb\u9020\u306e\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8<\/li>\n\n\n\n<li>\u9023\u7d9a\u3057\u305f\u30e1\u30e2\u30ea\u30a2\u30af\u30bb\u30b9\u30d1\u30bf\u30fc\u30f3<\/li>\n\n\n\n<li>\u30ad\u30e3\u30c3\u30b7\u30e5\u30e9\u30a4\u30f3\u30b5\u30a4\u30ba\u3092\u8003\u616e\u3057\u305f\u8a2d\u8a08<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30a8\u30e9\u30fc\u9632\u6b62\u3068\u30c7\u30d0\u30c3\u30b0<\/strong><\/li>\n<\/ol>\n\n\n\n<ul 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